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🔧 Anchor your projects with confidence—strong, smart, seismic-ready!
The Simpson Strong-Tie STB2-50700 Strong-Bolt 2 is a 1/2-inch diameter, 7-inch long wedge anchor designed for superior holding power in concrete. Featuring a chamfered top to prevent installation damage and a zinc finish for corrosion resistance, it’s rigorously tested to meet seismic design categories A through F and complies with ACI355.2 and AC193 standards. Ideal for horizontal, vertical, and overhead applications, this 25-piece set delivers professional-grade strength and reliability for critical fastening needs.
| Fastener Type | Bolt |
| Head Style | Hex |
| Finish Type | Zinc |
| Shape | Wedge |
| Item Diameter | 0.5 Inches |
| Thread Size | 5 5/16 |
| Number of Pieces | 25 |
| Global Trade Identification Number | 00707392176022 |
| Manufacturer | Simpson Strong-Tie |
| UPC | 707392176022 |
| Part Number | STB2-50700 |
| Item Weight | 9.22 pounds |
| Item model number | STB2-50700 |
| Finish | Zinc |
| Item Package Quantity | 1 |
| Cutting Diameter | 0.5 Inches |
| Measurement System | Inch |
| Certification | As |
| Usage | Concrete |
| Included Components | Hardware |
| Batteries Included? | No |
| Batteries Required? | No |
D**N
Good Job, Great Price.
This product works great if you follow the directions. You must use a blow gun to clear the dust from the hole, if you do it will work perfectly. I've been using these for 30 + years, with very little trouble, usually my fault.
M**.
Worked great
I used these anchors to install a railing on my concrete porch. The definitely meet my expectations. So easy to use and the quality is great. I would definitely recommend this product to any diyer or professional.
A**N
Good quality, couldn’t find at Lowe’s.
Good quality.
P**.
Does what is designed to do and does it well
Easy to use and works very well. Couldn't pull the equipment out of the ground with a pallet jack so that's good although when hit with a truck it will most likely fail.
N**E
Do not use these, find another way to secure to concrete
This particular type of fastener, not this brand in particular, is the least reliable type of hardware I've ever used. Only about 75% of these will actually drive into your drilled holes correctly and will be secure. They bend easily when driving into the pilot holes and will frequently spin in place when attempting to tighten the hex nut. If you need to secure something to concrete, use these as a last resort.
C**G
1 Bolt can hold my weight, now I can build some storage rack without fear of the rack falling off the wall.
6 of these bolt, 3 for each rack is holding up my lumber storage rack. I have tested it. I weight almost 200Lbs, and it can hold my weigh at a 45 degree pull. Super happy with the performance.
D**N
Work great
Worked as expected
K**R
Great price for anchors.
Used these anchors to attach sill plate to a concrete slab. Best quality and price from Amazon.
J**N
Do not buy !
Bought damaged package and only 16 anchors were in the box out of 25 ! Strongly disappointed
T**B
Be check the quantity and content
Missing all nuts and quantity at time when received
Trustpilot
1 month ago
2 months ago